Chronic maxillary sinusitis

There is thickening of the walls (seen as a thin line of low SI) of the right maxillary sinus, mild circumferential mucosal thickening, and complete opacification (with the contents partially low signal intensity, suggestive of fungal infection and/or dessication), with these findings all seen on the T2-weighted scan and consistent with chronic sinusitis. The subsequent […] [...]

Juvenile angiofibroma, in a 16-year-old male

A large, intensely enhancing, mass lesion is seen within the left nasal cavity posteriorly which extends to fill the sphenoid sinus. There is bone destruction and remodeling on CT. The blood supply was predominantly from the external carotid artery, specifically from branches of the internal maxillary artery and ascending pharyngeal artery. On DSA there is […] [...]